watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.0.1:6009] Modules linked in: irq event stamp: 8004007 hardirqs last enabled at (8004006): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (8004007): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (7972224): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (7972224): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (7972224): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (7972227): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (7972227): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (7972227): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 0 UID: 0 PID: 6009 Comm: syz.0.1 Not tainted 6.16.0-rc2-syzkaller-gd4adf1c9ee77 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:hlist_empty include/linux/list.h:972 [inline] RIP: 0010:do_perf_trace_lock include/trace/events/lock.h:50 [inline] RIP: 0010:perf_trace_lock+0x153/0x3b0 include/trace/events/lock.h:50 Code: 10 48 03 0b 48 89 4c 24 10 42 80 3c 38 00 74 08 4c 89 f7 e8 9f 53 86 00 49 83 3e 00 75 25 48 8b 5c 24 10 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 7e 53 86 00 48 83 3b 00 0f 84 95 RSP: 0018:ffffc90000007200 EFLAGS: 00000a06 RAX: 1ffffd1ffff8c9fa RBX: ffffe8ffffc64fd0 RCX: ffffe8ffffc64fd0 RDX: ffffffff81729af5 RSI: ffffffff8be28b60 RDI: ffffffff8be28b20 RBP: ffffc90000007300 R08: ffffc900054af950 R09: 0000000000000000 R10: ffffc90000007498 R11: fffff52000000e95 R12: 1ffff92000000e48 R13: 000000000000000d R14: ffffffff8e00df88 R15: dffffc0000000000 FS: 00007f403c1466c0(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000075bd0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_node_noprof+0x1bb/0x3c0 mm/slub.c:4249 kmalloc_reserve+0xbd/0x290 net/core/skbuff.c:579 __alloc_skb+0x142/0x2d0 net/core/skbuff.c:670 skb_copy+0x188/0x800 net/core/skbuff.c:2125 mac80211_hwsim_tx_frame_no_nl+0xcd3/0x11c0 drivers/net/wireless/virtual/mac80211_hwsim.c:1871 mac80211_hwsim_tx_frame+0x1b5/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2222 mac80211_hwsim_beacon_tx+0x3f0/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2323 __iterate_interfaces+0x2a8/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:schedule_debug kernel/sched/core.c:5962 [inline] RIP: 0010:__schedule+0x1a7/0x4d00 kernel/sched/core.c:6682 Code: 74 08 48 89 df e8 d9 c4 bc f6 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c0 c4 bc f6 48 81 3b 9d 6e ac 57 <0f> 85 26 18 00 00 83 7c 24 70 00 7f 42 49 8d 5e 18 48 89 d8 48 c1 RSP: 0018:ffffc900054af380 EFLAGS: 00000246 RAX: 1ffff92000a95000 RBX: ffffc900054a8000 RCX: e4c370d3ec4dcd00 RDX: 0000000000000000 RSI: ffffffff8be28b60 RDI: ffffffff8be28b20 RBP: ffffc900054af590 R08: ffffffff8fa10df7 R09: 1ffffffff1f421be R10: dffffc0000000000 R11: fffffbfff1f421bf R12: ffff8880b863c408 R13: dffffc0000000000 R14: ffff8880303a3c00 R15: ffff888125c51000 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7108 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x9f/0x2c0 mm/kasan/generic.c:189 Code: 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 41 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 <0f> 85 de 01 00 00 49 ff c3 48 ff c3 75 ee e9 21 01 00 00 44 89 dd RSP: 0018:ffffc900054af700 EFLAGS: 00000246 RAX: 1ffff92000a95f01 RBX: fffffffffffffffe RCX: ffffffff8172a6e8 RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc900054af878 RBP: 0000000000000000 R08: ffffc900054af887 R09: 1ffff92000a95f10 R10: dffffc0000000000 R11: fffff52000a95f0f R12: 0000000000000002 R13: ffffc900054af878 R14: fffff52000a95f11 R15: 1ffff92000a95f0f __asan_memset+0x22/0x50 mm/kasan/shadow.c:84 unwind_next_frame+0xc98/0x2390 arch/x86/kernel/unwind_orc.c:592 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4328 [inline] __kmalloc_node_noprof+0x276/0x4e0 mm/slub.c:4334 kmalloc_node_noprof include/linux/slab.h:932 [inline] __bpf_map_area_alloc kernel/bpf/syscall.c:391 [inline] bpf_map_area_alloc+0x64/0x180 kernel/bpf/syscall.c:404 array_map_alloc+0x276/0x6f0 kernel/bpf/arraymap.c:141 map_create+0x903/0x1150 kernel/bpf/syscall.c:1477 __sys_bpf+0x67e/0x860 kernel/bpf/syscall.c:5818 __do_sys_bpf kernel/bpf/syscall.c:5943 [inline] __se_sys_bpf kernel/bpf/syscall.c:5941 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5941 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f403b38e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f403c146038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f403b5b5fa0 RCX: 00007f403b38e929 RDX: 0000000000000048 RSI: 0000200000000100 RDI: 0000000000000000 RBP: 00007f403b410b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f403b5b5fa0 R15: 00007fff6fed1fd8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 5986 Comm: syz.2.6 Not tainted 6.16.0-rc2-syzkaller-gd4adf1c9ee77 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:139 [inline] RIP: 0010:wrmsrq arch/x86/include/asm/msr.h:199 [inline] RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:212 Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 d2 fa 86 03 66 RSP: 0018:ffffc90000a08518 EFLAGS: 00000046 RAX: 0000000000000154 RBX: ffff8880b8723900 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 0000000000000154 RDI: 0000000000000838 RBP: 0000000000000000 R08: ffffc90000a08097 R09: 0000000000000000 R10: ffffc90000a08088 R11: ffffffff817014a0 R12: 00000000100049d1 R13: dffffc0000000000 R14: 0000000000000154 R15: 0000000000000020 FS: 00007f65aa7196c0(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffebfdebc9c CR3: 0000000076dd6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:405 [inline] lapic_next_event+0x11/0x20 arch/x86/kernel/apic/apic.c:416 clockevents_program_event+0x1cf/0x360 kernel/time/clockevents.c:334 hrtimer_interrupt+0x620/0xaa0 kernel/time/hrtimer.c:1900 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x10b/0x410 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:trylock_clear_pending kernel/locking/qspinlock_paravirt.h:124 [inline] RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:431 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x6b0/0xb60 kernel/locking/qspinlock.c:325 Code: c0 0f 85 42 01 00 00 c6 07 00 43 0f b6 04 37 84 c0 0f 85 60 01 00 00 c6 01 01 41 be 00 80 ff ff 66 c7 84 24 90 00 00 00 00 01 <48> b8 00 00 00 00 00 fc ff df 48 8b 4c 24 20 0f b6 04 01 84 c0 75 RSP: 0018:ffffc90000a08780 EFLAGS: 00000282 RAX: 0000000000000000 RBX: ffffffff8ed6ffc0 RCX: 1ffffffff1dadff8 RDX: 0000000000000100 RSI: ffffffff8d9820ce RDI: ffff8880b873c894 RBP: ffffc90000a08898 R08: ffffffff8fa10df7 R09: 1ffffffff1f421be R10: dffffc0000000000 R11: fffffbfff1f421bf R12: 1ffffffff1bf52c0 R13: 0000000000000000 R14: 00000000ffff9813 R15: 1ffffffff1dadff8 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:557 [inline] queued_spin_lock_slowpath+0x43/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x21f/0x290 kernel/locking/spinlock_debug.c:116 spin_lock include/linux/spinlock.h:351 [inline] mac80211_hwsim_tx_frame_no_nl+0x718/0x11c0 drivers/net/wireless/virtual/mac80211_hwsim.c:1822 mac80211_hwsim_tx_frame+0x1b5/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2222 mac80211_hwsim_beacon_tx+0x3f0/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2323 __iterate_interfaces+0x2a8/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:munlock_vma_folio mm/internal.h:1022 [inline] RIP: 0010:__folio_remove_rmap mm/rmap.c:1787 [inline] RIP: 0010:folio_remove_rmap_ptes+0x6a6/0xaf0 mm/rmap.c:1804 Code: 85 84 00 00 00 e8 0a 8e ae ff e9 78 fa ff ff e8 00 8e ae ff 4c 8b 6c 24 30 eb 05 e8 f4 8d ae ff 49 bf 00 00 00 00 00 fc ff df <49> 83 c5 20 4c 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 ef e8 RSP: 0018:ffffc900053bf2f0 EFLAGS: 00000246 RAX: ffffffff8211cb45 RBX: ffffea000175c700 RCX: 0000000000080000 RDX: ffffc9000cc39000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: 0000000000000000 R08: ffffea000175c733 R09: 1ffffd40002eb8e6 R10: dffffc0000000000 R11: fffff940002eb8e7 R12: ffffea000175c700 R13: ffff8880320328c0 R14: 0000000000000001 R15: dffffc0000000000 zap_present_folio_ptes mm/memory.c:1529 [inline] zap_present_ptes mm/memory.c:1590 [inline] do_zap_pte_range mm/memory.c:1691 [inline] zap_pte_range mm/memory.c:1735 [inline] zap_pmd_range mm/memory.c:1827 [inline] zap_pud_range mm/memory.c:1856 [inline] zap_p4d_range mm/memory.c:1877 [inline] unmap_page_range+0x1e59/0x41c0 mm/memory.c:1898 unmap_single_vma mm/memory.c:1941 [inline] unmap_vmas+0x399/0x580 mm/memory.c:1985 exit_mmap+0x248/0xb50 mm/mmap.c:1284 __mmput+0x118/0x420 kernel/fork.c:1121 mmput kernel/fork.c:1144 [inline] dup_mm kernel/fork.c:1494 [inline] copy_mm+0x1f3/0x4b0 kernel/fork.c:1529 copy_process+0x1706/0x3c00 kernel/fork.c:2169 kernel_clone+0x21e/0x870 kernel/fork.c:2599 __do_sys_clone kernel/fork.c:2742 [inline] __se_sys_clone kernel/fork.c:2726 [inline] __x64_sys_clone+0x18b/0x1e0 kernel/fork.c:2726 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f65a998e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f65aa718fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f65a9bb5fa0 RCX: 00007f65a998e929 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000008010e000 RBP: 00007f65a9a10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f65a9bb5fa0 R15: 00007ffdffeb0c68